What is the difference between PsA and Pso?

Psoriasis, or Pso, is a condition caused by an imbalance (something going wrong) in the immune system, and usually affects the skin. About 30% of people with Pso develop psoriatic arthritis, or PsA, which affects the joints and skin.It’s particularly likely if you have nail psoriasis, although it can appear before or at the same time as Pso.With PsA, joints, e.g. those in the feet or hands (called enthesitis and dactylitis), amongst others, may become stiff, swollen, fatigued and painful, limiting movement, and causing permanent damage if left untreated. PsA can affect people of any age, but usually starts between 30 and 50 and affects men and women equally.6

PsA can cause lasting problems, so if you have any concerns about your symptoms or treatment, be sure to speak to your healthcare professional. We have some handy tips for making the most of the time with your doctor.

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CP-308711. May 2024

References

British Association of Dermatologists patient hub; Psoriasis: an overview. Available at: www.skinhealthinfo.org.uk/condition/psoriasis/ Accessed: June 2020.
NHS. Living with psoriasis. Available at: www.nhs.uk/conditions/psoriasis/living-with/ Accessed: June 2020.
National Psoriasis Foundation. Seasonal flare guide. Available at: www.psoriasis.org/seasonal-flare-guide Accessed: June 2020.
PAPAA. Psoriasis: a simple explanation. Available at: www.papaa.org/learn-about-psoriasis-and-psoriatic-arthritis/common-questions/psoriasis-a-simple-explanation/ Accessed: June 2020.
AAD. How long will I have to treat my psoriasis? Available at: www.aad.org/public/diseases/psoriasis/treatment/medications/how-long Accessed: June 2020.
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